these 4 derivations will be built:
  /nix/store/6szvpwl4syw3xcz99h4kmys9y5rsn5i4-clan-runtime.drv
  /nix/store/3g5vrr92zpjz4jsxzlxf3104fzs3qh7d-clan-cli-source.drv
  /nix/store/skmwqvalvbvs4pz9kh1cssi1gw4gniac-clan-cli.drv
  /nix/store/3c66y9zcyy7c5zv5vvf8drqgmxnyq9ih-nix-shell.drv